PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-V-9050Valve,safety Relief

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 4820-00-019-9612 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-019-9612 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-019-9612. Primary manufacturer part number: MIL-V-9050.
Features
  • Valve,safety Relief — FSC 4820
  • Thread Direction: RIGHT-HAND SECOND END
  • Disk Loading Method: SPRING
  • Operating Pressure: 430.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Media for Which Designed: OXYGEN, GASEOUS SINGLE RESPONSE
  • Material: ALUMINUM ALLOY BODY
  • Style Designator: ANGLE
  • Thread Direction: RIGHT-HAND FIRST END
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Aluminum Alloy Body construction
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-00-019-9612, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-019-9612
Primary Part NumberMIL-V-9050
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Thread DirectionRIGHT-HAND SECOND END
Disk Loading MethodSPRING
Operating Pressure430.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Media for Which DesignedOXYGEN, GASEOUS SINGLE RESPONSE
MaterialALUMINUM ALLOY BODY
Style DesignatorANGLE
Thread DirectionRIGHT-HAND FIRST END
Valve Operation MethodAUTOMATIC
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
4820-00-019-9611 INTERCHANGEABLE
Valve,safety Relief
3110-00-144-8662 INTERCHANGEABLE
Bearing,ball,annular
4820-00-494-0755 INTERCHANGEABLE
Valve,safety Relief
5310-00-599-825090504 INTERCHANGEABLE
Washer,flat
Telemechanics Inc
4820-00-868-6584 INTERCHANGEABLE
Valve,safety Relief
4820-00-980-7721 INTERCHANGEABLE
Valve,safety Relief
4920-01-297-973590504 INTERCHANGEABLE
Test Program Set
Textron Systems Corporation Dba Textron Systems Corp
4140-01-520-480190504 INTERCHANGEABLE
Spot Cooler
Patterson Fan Company
Cross-Reference Index
Part NumberManufacturer
MIL-V-9050 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M9050-4 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
9050-4 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
20C-0050-4 Essex Industries, Inc. Dba Essex Industries (USA)
21244-1 Mission Systems Orchard Park Inc (USA)
FR121B2 Mission Systems Davenport Inc. (USA)
21244-1 Ingersoll-Rand Company Dba Ingersoll-Rand (USA)
MIL-PRF-9050 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
4820PL1341010 Jednolity Indeks Materialowy - Uniform Material Index (POL)
Related Parts
4820-00-019-9611INTERCHANGEABLE
VALVE,SAFETY RELIEF
3110-00-144-8662INTERCHANGEABLE
BEARING,BALL,ANNULAR
4820-00-494-0755INTERCHANGEABLE
VALVE,SAFETY RELIEF
5310-00-599-8250INTERCHANGEABLE
WASHER,FLAT
90504
4820-00-868-6584INTERCHANGEABLE
VALVE,SAFETY RELIEF
4820-00-980-7721INTERCHANGEABLE
VALVE,SAFETY RELIEF
4920-01-297-9735INTERCHANGEABLE
TEST PROGRAM SET
90504
4140-01-520-4801INTERCHANGEABLE
SPOT COOLER
90504

Frequently Asked Questions

What is NSN 4820-00-019-9612?

NSN 4820-00-019-9612 is a Valve,safety Relief, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-019-9612?

NSN 4820-00-019-9612 has 9 cross-referenced part numbers: MIL-V-9050 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M9050-4 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 9050-4 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 20C-0050-4 (Essex Industries, Inc. Dba Essex Industries), 21244-1 (Mission Systems Orchard Park Inc) and 4 more.

What NSN replaces 4820-00-019-9612?

There are 8 known substitutes for 4820-00-019-9612: 4820-00-019-9611, 3110-00-144-8662, 4820-00-494-0755 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-V-9050?

Key specifications for MIL-V-9050: End Item Identification: ACFT,TYPE B-52; Thread Direction: RIGHT-HAND SECOND END; Disk Loading Method: SPRING; Operating Pressure: 430.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-019-9612 still in active supply?

NSN 4820-00-019-9612 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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